Non-aqueous electrolyte secondary battery
    2.
    发明授权
    Non-aqueous electrolyte secondary battery 有权
    非水电解质二次电池

    公开(公告)号:US06593030B2

    公开(公告)日:2003-07-15

    申请号:US09798846

    申请日:2001-03-01

    IPC分类号: H01M438

    摘要: The present invention provides a rechargeable negative electrode for a non-aqueous electrolyte secondary battery comprising an alloy material which absorbs lithium during charge and desorbs lithium during discharge, and having a long cycle life. The negative electrode includes an alloy having a hexagonal closest packing structure and a Ni2In type structure composed of at least two elements.

    摘要翻译: 本发明提供一种用于非水电解质二次电池的可再充电负极,其包括在充电期间吸收锂并在放电期间解吸锂并且具有长循环寿命的合金材料。 负极包括具有六边形最接近填充结构的合金和由至少两个元素组成的Ni2In型结构。

    Non-aqueous electrolyte secondary cell
    6.
    发明授权
    Non-aqueous electrolyte secondary cell 有权
    非水电解质二次电池

    公开(公告)号:US06761998B2

    公开(公告)日:2004-07-13

    申请号:US10088398

    申请日:2002-03-18

    IPC分类号: H01M458

    摘要: A non-aqueous electrolyte secondary battery containing an alloy particle capable of absorbing and desorbing lithium in the negative electrode has a short cycle life and is insufficient in high-rate discharge characteristics, since the alloy particle is pulverized during charge/discharge cycles. In order to solve this problem, a negative electrode is employed, which comprises an alloy particle containing: at least two selected from the group consisting of metal elements and semimetal elements; oxygen; and nitrogen. It is preferred that the alloy particle have a phase A capable of electrochemically absorbing and desorbing lithium ion and a phase B having lithium ion conductivity or lithium ion permeability and that the phase B contain larger amounts of oxygen and nitrogen than the phase A.

    摘要翻译: 含有能够在负极中吸收和解吸锂的合金粒子的非水电解质二次电池由于在充放电循环中粉碎合金粒子,所以循环寿命短,高倍率放电特性不足。 为了解决这个问题,使用负极,其包括含有选自金属元素和半金属元素中的至少两种的合金粒子; 氧; 和氮气。 合金粒子优选具有电化学吸收和解吸锂离子的相A和具有锂离子传导性或锂离子渗透性的相B,并且相B含有比A相更大的氧和氮。

    Battery-driven electronic device and mobile communication apparatus
    7.
    发明授权
    Battery-driven electronic device and mobile communication apparatus 失效
    电池驱动的电子设备和移动通信设备

    公开(公告)号:US06882130B2

    公开(公告)日:2005-04-19

    申请号:US10451508

    申请日:2002-04-17

    摘要: The present invention provides a battery-driven electronic device for which a long time use of the battery can be achieved and mobile communications equipment such as a portable telephone. Even if the time at which the output voltage of a battery 201 becomes below the supply voltage required by a load 206 including a power amplifier for wireless communications comes earlier than a conventional lithium ion battery because of its discharge characteristics that the battery voltage change ratio is 0.25 or more, a step-up and -down converter 200 operates as follows. When the output voltage of the battery is higher than the supply voltage required by the load, the voltage is set to a predetermined supply voltage by the step-down operation mode. When the output voltage of the battery is decreased and becomes lower than the supply voltage required by the load, the voltage is set to a predetermined supply voltage by the step-up operation mode. Thus, even for a battery employing a new material having a high energy density, a long term use of the battery can be achieved.

    摘要翻译: 本发明提供了一种电池驱动的电子设备,其可以实现电池的长时间使用和诸如便携式电话的移动通信设备。 即使电池201的输出电压低于包括无线通信功率放大器的负载206所需的电源电压的时间比常规的锂离子电池要早,因为其放电特性使电池电压变化率为 升压和降压转换器200如下操作。 当电池的输出电压高于负载所需的电源电压时,通过降压操作模式将电压设定为预定的电源电压。 当电池的输出电压降低并且变得低于负载所需的电源电压时,通过升压操作模式将电压设置为预定的电源电压。 因此,即使对于采用具有高能量密度的新材料的电池,也可以长期使用电池。